#pragma once
#include<iostream>
#include<unistd.h>
#include<cstdlib>
#include<sys/types.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<arpa/inet.h>
#include<netinet/in.h>
#include<cstring>
#include"Log.hpp"

enum{
    SocketError = 1,
    BindError = 2,
    ListenError = 3
};

const int backlog = 10;

class Sock
{
public:
    Sock()
    {}
    ~Sock()
    {}
public:
    void Socket()
    {
        sockfd_ = socket(AF_INET,SOCK_STREAM,0);
        if(sockfd_ < 0)
        {
            lg(Fatal,"socket create error,%s: %d: ",strerror(errno),errno);
            exit(SocketError);
        }
        int opt = 1;
        setsockopt(sockfd_,SOL_SOCKET,SO_REUSEADDR,&opt,sizeof(opt));
    }
    void Bind(uint16_t port)
    {
        struct sockaddr_in local;
        memset(&local,0,sizeof(local));
        local.sin_family = AF_INET;
        local.sin_port = htons(port);
        local.sin_addr.s_addr = INADDR_ANY;

        if(bind(sockfd_,(struct sockaddr*)&local,sizeof(local)) < 0)
        {
            lg(Fatal,"bind error,%s: %d: ",strerror(errno),errno);
            exit(BindError);
        }
    }
    void Listen()
    {
        if(listen(sockfd_,backlog) < 0)
        {
            lg(Fatal,"Listen error,%s: %d: ",strerror(errno),errno);
            exit(ListenError);
        }
    }
    int Accept(std::string* clientip,uint16_t* clientport)
    {
        struct sockaddr_in peer;
        socklen_t len = sizeof(peer);
        int newfd = accept(sockfd_,(struct sockaddr*)&peer,&len);
        if(newfd < 0)
        {
            lg(Warning,"Listen error,%s: %d: ",strerror(errno),errno);
            return -1;
        }
        char ipstr[64];
        inet_ntop(AF_INET,&peer.sin_addr,ipstr,sizeof(ipstr));
        *clientip = ipstr;
        *clientport = ntohs(peer.sin_port);

        return newfd;

    }
    bool Connect(const std::string& ip,const uint16_t& port)
    {
        struct sockaddr_in peer;
        memset(&peer,0,sizeof(peer));
        peer.sin_family = AF_INET;
        peer.sin_port = htons(port);
        inet_pton(AF_INET,ip.c_str(),&peer.sin_addr.s_addr);

        int n = connect(sockfd_,(struct sockaddr*)&peer,sizeof(peer));
        if(n == -1)
        {
            std::cerr<<"connect to"<<ip<<":"<<port<<"error"<<std::endl;
            return false;
        }
        return true;
    }
    int Fd()
    {
        return sockfd_;
    }
    void Close()
    {
        close(sockfd_);
    }
private:
    int sockfd_;
};